SARAH Jessica Parker needs to read her car manual before she drives. The “Sex and the City” star was pulled over by state troopers on Route 27 in the Hamptons at dusk the other night when cops noticed the lights were off on the Mercedes minivan she was driving with her son, James. “She told him it was a brand-new car and she didn’t know how to turn them on,” a source tells us. “They showed her how and let her go with a warning. Parker, through her rep, said, “The officer was patient and kind.”